The Buchanan B Tap Insulated Piercing Connector BTC 4/0-10 is a high-quality electrical connector designed for wire gauges ranging from 6-10 AWG. With a heat shrink ratio of 4:1, this black connector features a compression termination type and a single copper pin for reliable electrical connections. Made by Buchanan in France, this B-Tap connector is ideal for piercing through insulation and providing a secure connection for a variety of electrical applications. With two ports and a single pole, this unit offers a convenient and efficient solution for connecting wires in electrical systems.